Notes on cancellations and repairs

Genuine chips are usually cancelled in one of three ways; A
drill hole, notching/clipping or overstamping.

Drill holes can vary
from a 4mm (approx) hole occurring anywhere on the chip, to an 8mm (approx)
hole right through the center. Notched chips are normally the samples
provided to the casinos by the manufacturers. Casino's do not carry
out their own 'cancellation' of chips.

Examples of drilled
chips that have had the drill hole filled, and inlays replaced or changed
exist. These repairs are normally only detectable by xray. Chips
are also known with cancellation removed. Where not detectable by
human eye, these can be verified by UV lamp.

Pictures of
typical cancellations are show below.

If you have any further
information on cancelled Nevada chips please
contact David Spragg.